Changing the number of arrays held in an array seems to change the way in which it behaves when parsed. Given an array which contains 1 item which is an array containing a single string item: $buzz = @(@("FooBar")) When the first item is requested: $b

Curious Powershell Behaviour

cls

&{
	$buzz = @(@("FooBar"))
	Write-Host ("Length of parent array is: {0}" -f $buzz.Length)
	Write-Host ("Type of parent array is: {0}" -f $buzz.GetType())
	Write-Host ("Length of child array is: {0}" -f $buzz[0].Length)
	Write-Host ("Type of child array is: {0}" -f $buzz[0].GetType())
}
Write-Host ""
&{
	$buzz = @(@("FooBar"), @("BarFoo"))
	Write-Host ("Length of parent array is: {0}" -f $buzz.Length)
	Write-Host ("Type of parent array is: {0}" -f $buzz.GetType())
	Write-Host ("Length of child array is: {0}" -f $buzz[0].Length)
	Write-Host ("Type of child array is: {0}" -f $buzz[0].GetType())
}


#Length of parent array is: 1
#Type of parent array is: System.Object[]
#Length of child array is: 6
#Type of child array is: System.String
#
#Length of parent array is: 2
#Type of parent array is: System.Object[]
#Length of child array is: 1
#Type of child array is: System.Object[]